Just letting you all know about our recent experience with America Car Rental in Merida.
I booked a SUV for our family to drive from Merida to Playa del Carmen on the 11th Dec and received a confirmation email.
On the eve of our departure on the 27th I had our concierge check that the vehicle was being delivered to the hotel in the morning as organised. Much to our horror they had no available cars until 2 days later.
After much discussion they were not apologetic and were basically told our booking was useless. Fortunately our concierge managed to organise a driver & taxi to reach our next destination. Terrible unreliable company - avoid!